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(parent: 4d8ab62) | patch
block: add blk_rq_aligned helper function
authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Thu, 28 Aug 2008 06:05:58 +0000 (15:05 +0900)
committerJens Axboe <jens.axboe@oracle.com>
Thu, 9 Oct 2008 06:56:11 +0000 (08:56 +0200)
commit879040742cf09f2360a9ac41846288707e4e567c
tree7768750efd0d8ef28a183f8cd781b0c878212795tree | snapshot (tar.gz zip)
parent4d8ab62e087d9300883b82c2662e73e6eef803a3commit | diff
block: add blk_rq_aligned helper function

This adds blk_rq_aligned helper function to see if alignment and
padding requirement is satisfied for DMA transfer. This also converts
blk_rq_map_kern and __blk_rq_map_user to use the helper function.

Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Cc: Jens Axboe <jens.axboe@oracle.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
block/blk-map.c diff | blob | blame | history
include/linux/blkdev.h diff | blob | blame | history